Pneumatic jack.



J. H. BBHRENS.

PNEUMATIC JACK. APPLICATION TILED JAN. 2a. 1912.

1 1 19,224, Patented Dec. 1, 1914;

51mm Joke]: Wm gy/Belm JOHAN HENRY BEHRENS, OF CAMDEN, NEW JERSEY.

PNEUMATIC JACK.

Application filed January 28, 1913.

To all U /tOI'IL it may concern:

lie it known that I, JornN HENRY Bicnicnxs, asubject of the Emperor of Germany, residing at East Side, amden, in the county of (amden and State of New Jersey, have invented-a certain new and useful Improvement in Pneun'iatic Jacks, of which the following is a specification.

My invention relates to new and useful improvements in pneumatic jacks, and especially with that class of jacks that are used for holding and raising the car coupler or draw bar in place beneath the car while the same is being mounted in position.

The coupler and its attachments are exceedingly heavy and awkward to put in position, and this especially so with the newer type orpresent day cars. At the present time, it requires a number of men to lift the couplerin place and hold it until fastened. and because of its enormous weight and awkwardness, the men handling the device are often severely injured.

ly the use of my invention, the coupler may be placed upon the jack and wheeled to the car, then lifted into place instantly by the turning of the valve and held in the desired position until after the different attachments and the coupler itself are fastened into position.

\Vith these ends in view, this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

ln order that those. skilled in the art to which this invention appcrtains may understand how to mak I and use the same, I will describe its construction in detail, referring by letter to the accompanying drawing forming a part of this specification, in which- Figure 1, is a side elevation of my pneumatic jack, portions thereof being broken away to clearly illustrate the construction, and showing the car coupler resting thereon, and Fig. an end view thereof, the coupler being removed.

In carrying out my invention as here embodied, 2 represents a pair of shafts carrying fastening means 3, for holding the pivoted rests 4, against the sha f ts when the device is being wheeled about. The rests 4 are pivoted to the shafts 2 as at 5, and are connected together by a cross piece (5, which Specification of Letters Patent.

Patented Dec. 1, 1914.

Serial No. 744,737.

also acts as a handhold to assist in wheeling the device from place to place when the rests are fastened to the shafts.

Upon the shafts is mounted a suitable frame or body 7, formed of side panels 8, joined together with suitable cross pieces 9, whose upper faces are below the upper edges of the side panels. 10 denotes the V shaped side arms which are preferably composed of angle iron, with the flange diminishing toward the ends. The ends of these side arms are fastened to the frame by suitable rods or bolts 11 and 12 which pass through said side arms and the side panels. 011 the rod 12 between the side panels is journaled a roll 13 on which rests one portion of the car coupler, the shank thereof resting upon the buffer 15, having a covering of suitable resilient material 16, such as rubber or canvas to prevent the coupler from slipping. By lifting the end of the coupler which rests upon the end of the buffer, said coupler may be readily moved through the medium of the roller, thereby distributing its weight or to place it into correct position for raising it in place. Beneath the car 1.7, is an axle which is in the shape of a crank shaft as indicated at 18, and this portion is preferably squared. Said axle is fastened in place to the side arms 10 by suitable plates 19 which underlie the ends, and have bolts 20 passing there-through which also pass through the flange of the side arms. ()n the axle are journaled the wheels 21, of the crankshaft shaped axle. These wheels may be relatively large to permit their ready passage over obstructions that are likely to be in a railway yard, such as the tracks and ties.

Mounted upon the body portion of the axie is a cylinder 22 of the jack, the heads 23 01' which are held in place by rods 24: and :25. The rods 24.- extcnding through the lower head as at 96 and through the plates 27 underlying the body portion of the axle, said rods 24 having nuts 28 threaded thereon which engage one of the heads of the cylinder and also have the nuts 29 threaded on their extreme ends and contacting with the plates 27, so that when in place the cylinder will be held securely upon the axle. In this cylinder is mounted the jack piston 30 having a head 31 reuolubly mounted thereon and this head has a cut away portion 32 adapted to register with the bolt head 33 of the coupler when the portion carrying said bolt is resting upon the piston head.

3a is a pipe line leading from the connection or coupler 35 to the lower end of the cylinder, and this pipe line has a two Way valve 36 situated therein operated by the lever 37. As most railway yards of the present day are equipped with an air system, a connecting pipe or hose may be readily attached to this system and to the connection 35 upon the jack. when by opening the Valve 36 the air will pass into the cylinder raise the piston to carry the coupler upward to its position. By turning said valve to the closed position, said coupler Will be held in the desired position for mounting it on the car and after this operation has taken place, the valve 36 is used for exhausting the air from the cylinder allowing the inside to recede, after which time the jack may be readily drawn from beneath the car.

By constructing the jack as here shown and described it permits the coupler attachments to be added thereto Without any obstructions from protruding parts of the jack.

Of course ll do not wish to be limited to the exact details of construction and combination as here described, as these may be varied Within the limits of the appended claims Without departing from the spirit of my invention.

Having thus fully described my invention, What I claim as new and useful, is-

1. In a device of the character stated a pair of shafts, a frame secured thereto, V shaped side arms depending from said frame, rods for fastening said side arms to the frame, a roll journaled upon one of said rods, a buffer mounted upon said frame, an axle secured to the side arms, Wheels journaled upon said axle and a pneumatic jack mounted upon said axle between the side arms.

2. In a device of the character stated a pair of shafts, a frame secured thereto, V shaped side arms depending from said frame, rods for fastening said side arms to the frame, a roll journaled upon one of said rods, a buffer mounted upon said frame, a U shaped axle secured to the side arms, the ends of said axle projecting beyond said side arms, wheels journaled upon the projecting ends of said axle, and a pneumatic jack supported by said U shaped axle.

3. In a device of the character stated a frame, a pair of shafts carried by said frame, rests pivoted to the shafts, means carried by the shafts for holding said rests in a raised. position, a cross piece carried by said rests adapted to be used as a handhold, when said rests are in their raised position, V shaped side arms secured to the frame and depending therefroima U shaped axle carried by the side arms and projecting beyond the latter, the bowed portion of the axle depending below the ends of the side arms and situated therebetween, a pneumatic jack supported by the bowed portion of the U shaped axle and secured to the frame, a roller journaled between the side panels of the frame at its forward end, and a buffer secured to the frame adjacent its rear end.

in testimony whereof, I have hereunto aliixed my signature in the presence of two subscribing Witnesses.

J OHAN HENRY BEHRENS.

Witnesses MARY MCALLA, M. P. WILLIAMSON. 

